US Patent Issued to Sharp on June 17 for "Film" (Japanese Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,184, issued on June 17, was assigned to Sharp K.K. (Sakai, Japan).

"Film" was invented by Yasuhiro Shibai (Osaka, Japan) and Hidetsugu Kawai (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The film according to an embodiment of the present invention 1 includes a synthetic polymer membrane 3 including a surface having a plurality of protrusions 3a, and photocatalyst particles 4 supported on the surface of the synthetic polymer membrane 3. As the synthetic polymer membrane 3 is seen from a normal line direction, the two-dimensional size of the plurality of protrusions 3a is more than 20 nm to less than 500 nm. The mean particle diameter o...